The 10th House or MC is considered the most important house after the Ascendant. The calculation of the longitudes of the houses start with the calculation of the longitudes of the Ascendant and the MC. This is the formula used for calculating the longitude of the MC:

Tan K = Tan R /Cos w

where K is the longitude of the MC, R is the mean longitude of the Sun and w, the Sun's maximum declination.

The Tenth House deals with Profession, the important dimension in one's life.

One becomes a success in the professional sphere, depending on the strength of the 10th lord and the 10th house. If the 10th lord is debilitated or weak, the professional life of the native will suffer. If he be powerful, professional success is indicated.

The Effects of the 10th lord in the Ascendant

Since the 10th lord is in the First, the native will be a workaholic and will come up the hard way to the top. They will be self employed and will have independent professions. If their talents are developed properly, they will be hailed as pioneers. Health problems manifest only during childhood. Their principle is "Slow and steady wins the race" and the progress they achieve will be steady and slow. They will have relations with powerful people, people who are related to politics. This combination is conducive to success in politics.

The Effects of the 10th lord in the Second House

Since the 10th lord is in the 2nd, the native is lucky as far as profession is concerned. Since the 2nd is 5th from the 10th, they will be successful in their professional spheres. They may develop their family business and if they suffer losses, they may wind it up. This is a combination that bestows fame according to astrological savants. A big patrimony may be inherited. Professional reputation and enhancement results as a result of hard work put in. While they overcome the impediments to success with determination, they go up in the ladder of fame.

The Effects of the 10th lord in the Third House

Since 10th lord is in the 3rd, part of the native's career will be spent in travelling. They may shine as speakers or writers. Brothers will be instrumental in their progress in the professional sphere. Rivalry with brothers and possible reversals as a result likely. Since they are wedded to truth, they command respect within their circle. They will be well liked and there won't be any lack of cooperation and goodwill at the place of work. They may be beset by problems in profession as the 3rd is the 6th from the 10th. They will overcome these problems in time.

The Effects of the 10th lord in the Fourth House

Since the 10th lord is in the 4th, the native will be a versatile person with knowledge in various subjects. They will be renowned for their learning and generosity. They may shine in real estate deals and agricultural pursuits. They will wield political power and will be known as good mediators. They will have powerful friends who will help them in their hour of crisis. They will have a well decorated house & conveyances. Because of their wealth and leadership qualities, they will have followers and juniors who admire them. This is a powerful position for public life.

The Effects of the 10th lord in the Fifth House

Since the 10th lord is in the 5th, the native will excel in real estate deals and in speculation.They are inclined to Religion and Philosophy and lead a simple life with prayer and meditation. They are interested in learning from early childhood and adhere to Truth. They will be blessed with all the comforts of life. They will have powerful friends. As the 5th is 8th from the 10th, they will have reverses in profession and may be subjected to vicissitudes. They will have powerful enemies also who will try to block their progress and development.

The Effects of the 10th lord in the Sixth House

Since the 10th lord is in the 6th, the native will shine in occupations which are connected with the judiciary, hospital or prison. They will hold responsible posts. They will be known as impartial men and will be held in high esteem. There may be transfers and changes in their environment. They will subject to trouble through enemies. As the 6th is 9th to the 10th, they will have professional luck and people will recognise them as professionals. They will wield political power and have wealth beyond the dreams of avarice. Lucky breaks come to them automatically.

The Effects of the 10th lord in the Seventh House

Since the 10th lord is in the 7th, this is a powerful position for professional life. Their IQ will be above the average & they will be renowned for their communication skills. They will be blessed with a partner who becomes a cause for their career development. They may travel abroad for business. Their managerial abilities are well known as they fill their targets in time. They believe in people and in delegation. Hence all ventures initiated by them prove to be successful. As the 7th is 10th from the 10th, their professional fame will surpass all boundaries.

The Effects of the 10th lord in the Eighth House

Since the 10th lord is in the 8th, changes or breaks in career are to be expected. Anyway they will have a regal status in their profession. They may become mystics & choose the path celestial. They will be blessed with good longevity. They are noble-minded & high principled and uphold lofty principles. They will be well appreciated by their juniors & associates. As the 8th is 11th from the 10th, they will have high gains via profession. Their brothers also ascend the ladder of success.

The Effects of the 10th lord in the Ninth House

Since the 10th lord is in the 9th, the native will become a sage & a mystic. They will become exemplars and guides to those who walk the path celestial. Fortune will favour them generally and they will be well off. A hereditary profession will be taken up by them - viz that of a teacher, preacher or healer. Their father will play a dominant role in their development and they will prove dutiful to him. They are basically altruists and charitable. They will shine as psychological counsellors. They will have a regal status and bearing and will be respected for their talents.

The Effects of the 10th lord in the Tenth House

Since the 10th lord is in the 10th, the native will shine in their profession as this position is conducive to professional brilliance. They may turn to asceticism during a particular stage in life. They respect their seniors and get respected thereby. People will find them trustworthy and they always prove to be good assistants who can be depended on. They can wield immense political power & always have contact with those in the Government. A powerfully posited 10th lord confers professional enhancement & reputation. People will look up to them for guidance.

The Effects of the 10th lord in the Eleventh House

Since the 10th lord is in the 11th, the native will earn merit & reputation along with money. They display a happy exterior always and show bonhomie and geniality. This earns them good reputation and goodwill among the public. They will be in a position to give employment opportunities to many a people. And this makes them the most sought after individuals with many friends. As the 11th is 2nd from the 10th, profession will fetch them immense largesse. Fame and reputation will be theirs. Professional enhancement indicated.

The Effects of the 10th lord in the Twelfth House

Since the 10th lord is in the 12th, the native is likely to reside abroad and will be beset with many problems and obstacles. They will be after Self Actualisation. They should be cautious in matters of tax or when dealing with government organisations. Beware of involvement with politicians which will result only in major loss for them . They may have a vocation linked to rituals and religion. Income may be from ecclesiastical sources. They may have many enmity & problems in profession. They are advised to turn to remedial measures for problem solution.